Steps to replicate the issue (include links if applicable):

• open a VRT ticket with many replies (e.g. this one)

What happens?: Znuny's thread handling, which inserts > for the previous message, generates unnecessary lines and forces the user to scroll a lot to reach the end of the email body. In the case of the linked example, the end looks like the screenshot provided below (the censored parts are words belonging to the same email; each colour indicates a separately arranged sentence)

What should have happened instead?: the replies should be somehow better arranged

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):